Droid market wont work properly

okay i got the "easy root" application a few days ago all was good with that,and i look into rom manager for more stuff to browse about,got into installing a new baseband,and i feel that messed it up, bcuz the android market was acting up....so now im back to 2.1 unroot and factory reset,and now market it still acting up,whenever i get to the market and my bought games are gone, like tetris and doodle jump,even when searching for almost anything brings up nothing......and i also tried to download google maps but it get a install error "Package file was not signed correctly.....any fix guys?